class Student:
    def __init__(self,name,age,sex):
        self.name = name
        self.age = age
        self.sex = sex
    def get_name(self):
        return self.name

    @staticmethod
    def sum1(a,b):
        return a+b

    

    @classmethod
    def get_info(cls,ss):
        print(f"我正在进行：{ss}活动")


if __name__ == '__main__':
    s1 = Student('张三',19,'男')
    print(s1.get_name())

    Student.get_info('学习')





































